Kerfed Enclosure build for 12

[Slim_Shady]

Hey what formula did you use to calculate port length with that big *** flare? Oh, and fotmula to get the radius right w/ the kerf cuts.

It also gives you a port area advantage over the traditionnal slot port, right? Kinda like a horn?

Looks good

 

[Pioneer~Saturn 5,000+ posts]

Thanks guys //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Hey what formula did you use to calculate port length with that big *** flare? Oh, and fotmula to get the radius right w/ the kerf cuts.
It also gives you a port area advantage over the traditionnal slot port, right? Kinda like a horn?

Looks good

And there's nothing really special I do when calculating for a flared port...I just start the length of the port at about halfway through the flared/kerfed portion.

It really helps to have google sketch-up downloaded or a program like it so you can draw it out...then find the length of the outside of the board in the kerfed portion, then subtract the length of the inside of the board in the kerfed portion and then devide that by the width of the saw blade and you have how many cuts you'll have to make to make it perfect and you then can do the math to space them across the area of the kerf to make it even //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And it doesn't really effect much other than reducing the chance for port noise and look nice

 

[mobeious 10+ year member]

u should start the length of the port where the flare begins

 

[Pioneer~Saturn 5,000+ posts]

u should start the length of the port where the flare begins

So, it would stop right at that line?...I'd think it'd still act as part of the port some portion out into the flare...

 

[Slim_Shady]

Thanks guys //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif


And there's nothing really special I do when calculating for a flared port...I just start the length of the port at about halfway through the flared/kerfed portion.

It really helps to have google sketch-up downloaded or a program like it so you can draw it out...then find the length of the outside of the board in the kerfed portion, then subtract the length of the inside of the board in the kerfed portion and then devide that by the width of the saw blade and you have how many cuts you'll have to make to make it perfect and you then can do the math to space them across the area of the kerf to make it even //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

And it doesn't really effect much other than reducing the chance for port noise and look nice

Thanxxx

 

[Pioneer~Saturn 5,000+ posts]

No prob

 

[mobeious 10+ year member]

well when the width of the port changes the tuning changes so u should shoot for the tunning ur using with all the port being the same size the flare just directs the air out of the port

 

[Pioneer~Saturn 5,000+ posts]

I getcha...so in that case it may be tuned more like 32.5Hz //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[mobeious 10+ year member]

yes sir

 

[muskyhunter567 10+ year member]

Pony Clamps FTW!! i wish i had that many

 

[bball09124 10+ year member]

Needs some bigger 45's. Looks good though.

 

[mobeious 10+ year member]

Needs some bigger 45's. Looks good though.

y?

 

[Pioneer~Saturn 5,000+ posts]

Thanks guys and bigger 45's might be pushing it with only 2.5" wide port //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[93dakota 10+ year member]

So this is what you do when Im not around...lol... I always wondered

 

[Pioneer~Saturn 5,000+ posts]

Haha, yea...I usually sleep walk to the garage and start making enclosures, then I wake up and there's an enclosure infront of me //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif...Ive always thought it was a bit weird..